Finding the Fourth Proportional to 321,152.48, 443,158.12 and 177,885.76

Step by Step Solution

1. Step 1: Write the proportion equation
   321,152.48 : 443,158.12 = 177,885.76 : x
2. Step 2: Convert to fraction form
   321,152.48/443,158.12 = 177,885.76/x
3. Step 3: Cross multiply
   321,152.48x = 443,158.12 × 177,885.76
4. Step 4: Simplify right side
   321,152.48x = 78,831,518,976.37
5. Step 5: Solve for x
   x = 78,831,518,976.37/321,152.48
6. Step 6: Final answer
   x = 245,464.46